JPH0556250U - Discharge wire cleaner for electric dust collector - Google Patents

Abstract

(57) [Summary] [Purpose] Dust attached to the surface of the discharge line (discharge electrode) of an electrostatic precipitator can be efficiently removed in a short time. [Structure] A columnar body 1 and a vertically moving device (hoist (not shown)) for vertically moving a suspension ring 3 of a plurality of columnar bodies 1 by suspending them in a longitudinal direction by a hanger 4. The slits 2 wider than the diameter of the electric wire 5 are provided, and the slits 2 are arranged in the radial direction different from each other by 180 degrees from the centers of both end faces.
The center axis and the generatrix were longitudinally cut along the center axis and the generatrix to the center in the longitudinal direction of the columnar body 1, and the columnar body 1 was provided to be connected at the center in the longitudinal direction. It is extremely easy to attach and detach the cylindrical body 1 to and from the discharge wire 5.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a discharge line cleaner that removes dust adhering to the surface of a discharge electrode (discharge line), in particular, of both electrodes of an electrostatic precipitator.

[0002]

[Prior Art]

 A Cottrell electrostatic precipitator is generally used to remove dust in the exhaust gas from the kiln. As shown in FIGS. 2 (a) and 2 (b), this electrostatic precipitator applies a DC high voltage between the discharge electrode 5 (discharge line), which is the positive electrode, and the dust collection electrode 6, which is the negative electrode. When the exhaust gas is passed, the dust is positively charged by the corona discharge and is collected by the dust collecting electrode 6 which is grounded. The dust collecting electrode 6 loses the charge and falls to the hopper 7 below.

However, if this electric dust collector is used for a long period of time, dust will adhere to the discharge wire 5 and accumulate, and dust will also adhere to the dust collector electrode 6 and the inside of the dust collector will have high temperature and high humidity. Therefore, rust may be generated on the surface of the dust collecting electrode 6, and the rust may be peeled off to narrow the gap between the discharge wire 5 and the dust collecting electrode 6 to cause insulation deterioration. In any case, since such dust reduces the dust collection efficiency of the electrostatic precipitator, it is necessary to remove the dust etc. by using the time when the electrostatic precipitator is stopped.

However, this dust collector has a structure in which it is possible to clean only the upper and lower ends of the electrode and it is impossible to clean the whole (usually, the interval between the dust collecting electrodes 6 shown in FIG. Workers cannot enter or leave, and there is no corridor in the middle section). Therefore, the removal work involves manually striking the discharge lines and dust collecting electrodes on both upper and lower sides to drop dust and the like by impact, and the upper end side must be cleaned at the lower end side, that is, the hopper side. Will fall from the top, so the working environment will be poor. Further, when the discharge wire is hit, metal fatigue occurs in the discharge wire, and the life is remarkably reduced.

[0005]

[Problems to be solved by the device]

 Although the discharge lines are cleaned manually as described above, the discharge line varies depending on the model, but there are a total of 3,600 lines, and the work environment is poor. There was a problem that the worker had to wear an outside air introduction mask to perform the work, and the dust in the discharge line in the middle part could not be completely removed.

The present invention solves such a problem and eliminates the cleaning work on the hopper side (lower side), and the cleaning work of the discharge line is efficient in a short time and dust is completely removed when the dust collector is stopped. An object of the present invention is to provide a discharge line cleaner that can be used.

[0007]

[Means for Solving the Problems]

 The present invention comprises a columnar body and a vertical movement device that vertically moves by suspending the columnar body in the longitudinal direction. The columnar body has slits wider than the diameter of the discharge line and is 180 degrees from the center of both end faces. It is characterized in that slits are provided in different radial directions, which extend vertically between the center axis of the cylinder and the generatrix along the center axis and the generatrix to the center of the cylinder in the longitudinal direction, and cross the central axis in the longitudinal direction to connect. It is a discharge line cleaner for an electric dust collector.

[0008]

[Action]

 Since the present invention is configured as described above, when the cylindrical body is attached to the discharge wire and the vertical body is moved up and down by the vertical movement device, the dust attached to the surface of the discharge wire is efficiently made by the slit provided in the cylindrical body. It can be removed. To attach the column to the discharge line, the discharge line can be inserted into the slit that connects the column and the column can be rotated about 90 degrees, and the reverse operation can be performed. .. Therefore, it is extremely easy to attach and detach the cylindrical body to and from the discharge wire.

[0009]

【Example】

 A perspective view of an embodiment of the cylindrical body 1 used in the present invention is shown in FIG. As described above, the slit 2 is provided in the cylindrical body 1 so that the cylindrical body 1 can be attached to and removed from the discharge wire 5 very easily. That is, the discharge line is mounted in the slit 2 part that connects the columnar body at the center of the columnar body 1 and is connected, and the cylinder axis of the columnar body 1 is directed in the direction of the discharge line 5. It can be attached to the electric wire 5.

FIG. 1B is an explanatory diagram of an embodiment of the present invention. Six (only two are shown) cylindrical bodies 1 are hung on a hanger 4 and eccentrically from the cylinder axis of the cylindrical body 1 and suspended by a suspension ring 3, and the hanger 4 is connected to a hoist (not shown). There is. By moving the hanger 4 up and down by the hoist, the dust of the six discharge lines 5 can be simultaneously removed over the entire length.

That is, since the position of the suspension ring 3 of the cylinder is eccentric from the cylinder axis of the cylinder, when the cylinder is hung, the cylinder slightly inclines. Therefore, the slits 2 of the upper and lower lids work to scavenge the dust adhering to the surface of the discharge line, and the dust removal effect can be improved. Although the cylindrical body 1 is used in the present invention, it is not limited to the cylindrical body and may be a quadrangular prism, and the lower portion of the cylindrical body may be formed in a conical shape. In any case, if the center of gravity of the columnar body 1 is located at the bottom, the columnar body 1 is unlikely to come off the discharge line 5.

Further, a wire may be attached instead of the suspension ring 3, and the hanger 4 and the columnar body 1 of FIG. 1B are configured to be long so that the columnar body 1 can be easily attached to the hanger 4. It is desirable to do.

[0013]

[Effect of the device]

 The present invention has the following excellent effects. (1) It is possible to completely remove dust, including a portion that could not be removed conventionally. (2) Since the discharge line becomes the same as the new product after cleaning, the dust collection effect during steady operation is improved. (3) Since the cleaning of the discharge line is completed, the metal fatigue disconnection of the discharge line is reduced and the life can be extended. (4) It is possible to improve working environment and working conditions such as safety measures.

[Brief description of drawings]

FIG. 1 (a) is a perspective view of a cylindrical body used in an embodiment of the present invention, and FIG. 1 (b) is an illustration of an embodiment of the present invention.

2A and 2B are explanatory views of the electrode arrangement of the electrostatic precipitator, FIG. 2A is a side sectional view, and FIG. 2B is AA of FIG. 2A.
It is an enlarged view of the arrow cross section.

[Explanation of symbols]

 1 Cylindrical body 2 Slit 3 Suspension ring 4 Hanger 5 Discharge line (discharge electrode) 6 Dust collecting electrode 7 Hopper

Claims (1)

[Scope of utility model registration request] 1. A columnar body and a vertical movement device for vertically moving the columnar body by suspending the columnar body in a longitudinal direction, wherein the columnar body has slits wider than the diameter of the discharge line, and is formed from the center of both end faces. In a radial direction different from each other by 180 degrees, a slit is vertically provided between the central axis and the generatrix of the cylindrical body along the central axis and the generatrix to the longitudinal center of the cylindrical body, and the slit is connected across the longitudinal center. A discharge line cleaner for an electric dust collector.